No patterns, please, so I upgraded the Polybrush Shader to paint naturally without annoying repetition on PolyBrush :) So I can bring my own 3D terrains made in Blender and paint them
MeshBrush | Painting | Unity Asset Store
Mesh Texture painting in Unity Using Shaders | by Shahriar Shahrabi | Medium
Layered painting and erasing in Mesh Painter - YouTube